Text Products for FWS Issued by FFC

Spot Forecast
Issued by NWS Atlanta, GA
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FNUS72 KFFC 190753
FWSFFC

Spot Forecast for 191...USFS
National Weather Service Peachtree City GA
353 AM EDT Fri Apr 19 2024

Forecast is based on ignition time of 0800 EDT on April 19.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Good Morning!

As Ty mentioned in yesterday evening`s spot forecast, there will
be some isolated rain showers this morning. Latest radar shows
isolated showers and storms moving into northwest GA. This
activity will continue to push east over the next few hours. For
your area this morning (between 5-8am), to account for this,
there is 20% chance of seeing a stray shower. Additionally, any
further development this afternoon still looks to remain north and
west of the ignition site. Your chance for wetting rain never
exceeds 30% for today. Any thunderstorms in and around the area
may create some gusty and erratic winds even despite any notable
rainfall.With moisture in the area, RH values will be slightly
higher than yesterday with minimum values between 45%-50%.

Surface winds remain out of the west with speeds increasing to
8-10MPH near the time of ignition. Both 20ft and transport winds
will behave similarly, though transport speeds will increase to 12
to 20 MPH by mid-morning.

We will continue to keep an eye on things through the day!

.TODAY...

Sky/weather.........Mostly sunny (35-45 percent). Slight chance of
                    showers early in the morning. Slight chance of
                    thunderstorms early in the morning, then slight
                    chance of showers and thunderstorms late in the
                    afternoon.
CWR.................10 percent increasing to 20 percent early in
                    the morning, then decreasing to 10 percent in
                    the late morning and early afternoon increasing
                    to 20 percent late in the afternoon decreasing
                    to 10 percent.
LAL.................1 until 0800, then 2 until 0900, then 1 until
                    1400, then 2 until 1700, then 1.
Max temperature.....Around 87.
Min humidity........49 percent.
Dewpoint............65.
Wind (20 ft)........Light winds becoming west 5 to 10 mph early in
                    the morning. Gusty and erratic winds expected
                    near thunderstorms early in the morning. Gusty
                    and erratic winds expected near thunderstorms
                    late in the afternoon.
Mixing height.......5500 ft AGL.
Transport winds.....West 2 to 6 mph increasing to 12 to 20 mph in
                    the late morning and afternoon.
Smoke dispersal.....Poor (500 knot-ft) early in the morning
                    increasing to excellent (78200 knot-ft) in the
                    afternoon.
LVORI...............5.
ADI.................1 early in the morning increasing to 102 in the
                    afternoon.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.
Pcpn amount.........0.03 inches.
CEILING (KFT).......9.0 decreasing to 7.0 in the morning, then
                    increasing to 9.0 late in the morning
                    increasing to 10 early in the afternoon
                    decreasing to 9.0 increasing to 25 early in the
                    afternoon decreasing to 10 increasing to 25
                    late in the afternoon.

TIME (EDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........41  51  32  32  13  15  18  26  25  27
Weather cov.....SCH                     SCH SCH SCH
Weather type....RW                      RW  RW  RW
Tstm cov........SCH                     SCH SCH SCH
CWR.............20  10  10  10  10  10  20  20  20  10
LAL.............2   1   1   1   1   1   2   2   2   1
Temp............66  69  74  77  81  83  85  86  86  86
Dewpoint........64  65  66  66  66  66  66  66  65  65
RH..............93  88  76  68  61  57  52  51  49  49
20 FT wind dir..W   W   W   W   W   W   W   W   W   W
20 FT wind spd..5   6   7   7   8   9   9   10  9   9
20 FT wind gust.7   10  10  13  14  15  15  15  15  15
Mix hgt (kft)...0.2 0.8 2.1 2.7 3.4 4.8 5.5 5.2 4.6 4.4
Transp wind dir.W   W   W   W   W   W   W   W   W   W
Transp wind spd.6   12  16  18  20  18  16  16  15  14
LVORI...........6   5   3   1   1   1   1   1   1   1
ADI.............6   11  42  63  79  100 102 94  82  73
Haines index....3   3   3   3   3   3   4   4   4   4
Vrate kt-ft/1K..1   12  33  44  52  70  78  72  60  53
Ventrate Cat....PR  PR  PR  FR  FR  GD  GD  GD  FR  FR
Ceiling (kft)...7.0 7.0 7.0 9.0 10  9.0 25  10  10  25

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    mostly cloudy (50-60 percent) then becoming
                    partly cloudy (30-40 percent).
CWR.................10 percent.
LAL.................1.
Min temperature.....Around 63.
Max humidity........100 percent.
Dewpoint............65.
Wind (20 ft)........West winds 5 to 9 mph.
Mixing height.......200 ft AGL.
Transport winds.....West 6 to 12 mph.
Smoke dispersal.....Good (40300 knot-ft) early in the evening
                    decreasing to poor (900 knot-ft) late in the
                    night.
LVORI...............5.
ADI.................3 to 34.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.
Pcpn amount.........0.01 inches.
CEILING (KFT).......25 decreasing to 20 overnight, then increasing
                    to 25 after 3 am.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........30  27  26  26  35  28  36  53  50  33  32  22
Weather cov.....
Weather type....
Tstm cov........
CWR.............10  10  0   10  10  10  10  10  10  0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............86  83  80  75  73  71  69  68  67  66  65  64
Dewpoint........64  65  66  66  67  66  66  66  66  65  65  64
RH..............49  53  62  75  80  86  91  94  94  97  100 100
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   NW
20 FT wind spd..9   7   7   6   7   7   5   5   5   5   5   5
20 FT wind gust.14  12  10  9   10  10  8   8   8   8   8   8
Mix hgt (kft)...2.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   NW
Transp wind spd.12  9   8   7   8   8   7   7   6   6   6   6
LVORI...........1   2   3   3   4   5   6   6   6   7   9   9
ADI.............34  6   4   3   4   4   4   4   3   3   3   3
Haines index....4   4   4   4   4   4   4   4   3   3   3   3
Vrate kt-ft/1K..40  14  1   1   1   1   1   1   1   1   1   1
Ventrate Cat....FR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
Ceiling (kft)...25  25  25  25  25  25  25  25  20  20  25  25

.SATURDAY...

Sky/weather.........Mostly sunny (25-35 percent).
CWR.................10 percent.
LAL.................1.
Max temperature.....Around 85.
Min humidity........44 percent.
Dewpoint............62.
Wind (20 ft)........Northwest winds 5 to 8 mph.
Mixing height.......5300 ft AGL.
Transport winds.....Northwest 5 to 14 mph increasing to 14 to 16
                    mph late in the morning.
Smoke dispersal.....Poor (900 knot-ft) early in the morning
                    increasing to excellent (65900 knot-ft) in the
                    afternoon.
LVORI...............5.
ADI.................2 early in the morning increasing to 87 in the
                    afternoon.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.
Pcpn amount.........0.00 inches.
CEILING (KFT).......25 decreasing to 12.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........18  15  18  31  29  49  33  40  46  43  36  33
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   10  10  10  10
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............64  63  64  67  72  76  80  82  83  84  85  84
Dewpoint........64  63  63  64  64  63  63  62  62  61  61  60
RH..............100 100 96  90  76  65  56  51  50  47  44  44
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  W   W   W   W
20 FT wind spd..5   5   5   5   6   7   7   8   8   8   8   8
20 FT wind gust.8   8   8   9   10  12  12  13  14  14  14  14
Mix hgt (kft)...0.2 0.2 0.2 0.9 2.4 3.1 3.6 4.7 5.2 5.2 5.3 5.3
Transp wind dir.NW  NW  NW  NW  NW  NW  NW  W   W   W   W   W
Transp wind spd.6   5   6   9   14  16  16  16  15  15  15  14
LVORI...........9   9   7   5   3   1   1   1   1   1   1   1
ADI.............2   5   6   11  40  62  73  86  87  87  87  84
Haines index....3   3   3   3   3   2   2   2   3   3   3   3
Vrate kt-ft/1K..1   1   1   12  33  44  49  60  66  65  64  64
Ventrate Cat....PR  PR  PR  PR  PR  FR  FR  GD  GD  GD  GD  GD
Ceiling (kft)...25  25  25  25  20  20  20  15  15  15  12  12

$$
Forecaster...Wyatt
Requested by...Tim Kolnik
Type of request...PRESCRIBED
.TAG 2411254.0/FFC
.DELDT 04/17/24
.FormatterVersion 2.0.0
.EMAIL timothy.kolnik@usda.gov
National Weather Service Weather Forecast Office
